Heat discharge mechanism

Abstract

To provide a heat discharge mechanism for hardly worsening habitability in a floor usage section while suppressing the height of an air reservoir space.SOLUTION: The heat discharge mechanism includes a top light 20 at least part of which is provided above a floor usage section R, and which has an air reservoir space 24 formed between translucent plates 22A, 22B arranged while being vertically spaced from each other, and an air exhaust mechanism (a first air exhaust mechanism 60) capable of exhausting air from the air reservoir space 24 warmed by solar radiation.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an exhaust heat mechanism.

Background Art

[0002] Patent Document 1 below discloses a building having a void on the outer wall side, with an exhaust port provided at the upper part of the void, and at least a part of the outer wall disposed inside the void being composed of transparent glass. In this building, convection due to the rise of hot air occurs in the void, so that the surplus air in the living room communicating with the void is entrained by the upward airflow and exhausted from the exhaust port.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the building shown in Patent Document 1 above, in order to prevent air from being blown into the living room on the top floor from the void, a partition for blocking the air flow is provided. However, considering the daylighting and the view of the living room on the top floor, it is not always preferable to provide such a partition.

[0005] Even if the partition is formed of a light-transmitting material to ensure daylighting, air cannot be discharged from the living room on the top floor to the void. Further, if the partition is removed, there is a risk that the air heated by the upward airflow will flow into the living room on the top floor, deteriorating the thermal environment of the living room on the top floor.

[0006] Therefore, if the partition is removed and the protruding height of the building with the atrium to the upper part is further ensured, an air accumulation space is formed at the upper part of the atrium. As a result, daylighting is ensured for the living rooms on the top floor. Also, air is discharged from the living rooms on the top floor to the atrium, and the inflow of the air warmed by the updraft to the living rooms on the top floor is suppressed.

[0007] However, buildings are generally often subject to height restrictions, and there are many cases where the protruding height of the air accumulation space cannot be sufficiently ensured.

[0008] In consideration of the above facts, an object of the present invention is to provide a waste heat discharging mechanism that suppresses the height of the air accumulation space and is less likely to deteriorate the habitability of the floor use area.

Means for Solving the Problem

[0009] The waste heat discharging mechanism according to claim 1 includes a toplight in which at least a part is provided above the floor use area and an air accumulation space is formed between light-transmitting plates arranged at intervals in the vertical direction, and an exhaust mechanism capable of exhausting the air in the air accumulation space warmed by solar radiation.

[0010] In the waste heat discharging mechanism according to claim 1, the toplight is provided above the floor use area. Thereby, daylighting can be achieved in the floor use area.

[0011] Also, the air warmed by solar radiation is accumulated in the air accumulation space and exhausted by the exhaust mechanism. For this reason, it is difficult for the thermal environment of the floor use area to deteriorate.

[0012] Furthermore, the air accumulation space is formed between the light-transmitting plates arranged at intervals in the vertical direction. For this reason, the air warmed by the solar radiation transmitted through the upper light-transmitting plate is blocked by the lower light-transmitting plate and hardly reaches the floor use area. Thereby, compared with a toplight without the lower light-transmitting plate, while suppressing the height of the air accumulation space, it is difficult for the habitability of the floor use area to deteriorate.

[0013] The exhaust heat mechanism according to claim 2 is the exhaust heat mechanism according to claim 1, wherein the top light is provided above the floor use area and straddling the top of the atrium communicating with the floors of each floor, and the top light is provided with an introduction hole for introducing air from the atrium into the air accumulation space.

[0014] In the exhaust heat mechanism according to claim 2, the top light is provided not only above the floor use area but also straddling the top of the atrium communicating with the floors of each floor. Thereby, daylight can be introduced to the floors of each floor through the atrium.

[0015] In addition, since the exhaust air from the floors of each floor is introduced into the air accumulation space of the top light through the atrium, the ventilation path can be unified.

[0016] The exhaust heat mechanism according to claim 3 is the exhaust heat mechanism according to claim 2, wherein the atrium is provided at the outer peripheral part of the building.

[0017] In the exhaust heat mechanism according to claim 3, the atrium is provided at the outer peripheral part of the building. Therefore, daylight can be introduced to the floors of each floor not only through the top of the atrium but also through the outer peripheral part. In addition, the air at the outer peripheral part which is easy to warm up can be efficiently collected into the air accumulation space for exhaust heat.

[0018] The exhaust heat mechanism according to claim 4 is the exhaust heat mechanism according to any one of claims 1 to 3, having an outdoor air treatment air conditioner equipped with a desiccant rotor, and the exhaust mechanism can exhaust the air to the outside through the desiccant rotor.

[0019] In the exhaust heat mechanism according to claim 4, the exhaust mechanism exhausts the air in the air accumulation space to the outside through the desiccant rotor. By using the heat of the air accumulation space for the regeneration of the desiccant rotor in this way, it is not necessary to generate regeneration heat by a heating coil or the like, or the amount of regeneration heat generated by a heating coil or the like can be reduced, and energy can be saved.

[0020] The exhaust heat mechanism according to claim 5 is the exhaust heat mechanism according to claim 2 or 3, wherein the lower light-transmitting plate has an upward gradient toward the introduction hole.

[0021] In the exhaust heat mechanism according to claim 5, since the lower light-transmitting plate has an upward gradient toward the introduction hole, warm air flows along the light-transmitting plate toward the introduction hole, and the exhaust efficiency is high.

[0022] The exhaust heat mechanism according to claim 6 is the exhaust heat mechanism according to any one of claims 1 to 3, wherein the upper light-transmitting plate is heat-shielding type glass or heat-insulating type glass.

[0023] In the exhaust heat mechanism according to claim 6, the upper light-transmitting plate in the toplight is heat-shielding type glass or heat-insulating type glass. By providing these glasses, the temperature rise on the indoor side due to solar radiation can be suppressed as compared with a structure that does not use these glasses or a structure in which the lower light-transmitting plate is made of these glasses. Also, by providing heat-insulating type glass, it is possible to suppress the heat on the indoor side from escaping to the outdoor side in winter.

Effect of the Invention

[0024] According to the present invention, while suppressing the height of the air accumulation space, it is difficult for the habitability of the floor use area to deteriorate.

Brief Description of the Drawings

[0025]

Figure 1

Figure 2

Figure 3

Mode for Carrying Out the Invention

[0026] Hereinafter, the exhaust heat mechanism according to the embodiment of the present invention will be described with reference to the drawings. Components denoted by the same reference numerals in each drawing mean the same components. However, unless otherwise specified in the specification, each component is not limited to one, and a plurality of components may exist.

[0027] In addition, the description of overlapping configurations and reference numerals in each drawing may be omitted. Note that the present disclosure is not limited to the following embodiments, and appropriate modifications can be made and implemented, such as omitting configurations, replacing with different configurations, and combining one embodiment and various variations within the scope of the object of the present disclosure.

[0028] <Building> The exhaust heat mechanism according to the embodiment of the present invention shown in FIG. 1 is applied to a building 10. The building 10 is a multi-story building, and at least one surface of the outer peripheral portion is formed of a light-transmitting plate 12 such as glass.

[0029] In addition, the building 10 has a void 14 communicating with the floors of each floor facing the light-transmitting plate 12. The void 14 is formed from the top floor of the building 10 over a plurality of floors.

[0030] <Exhaust heat mechanism> The exhaust heat mechanism includes a void 14, a toplight 20, an outdoor air treatment air conditioner 30, an air supply mechanism 50, a first exhaust mechanism 60, and a second exhaust mechanism 70.

[0031] (Toplight) A toplight 20 is formed at the top of the void 14. At least a part of the toplight 20 is provided above the floor use area R. The "floor use area R" is, for example, a living room or a corridor where users move in the space of the building 10.

[0032] In this embodiment, a part of the top light 20 is provided directly above the portion of the floor utilization area R on the top floor of the building 10 that faces the atrium 14. The remaining part of the top light 20 is provided directly above the atrium 14. That is, the top light 20 is provided across the floor utilization area R on the top floor of the building 10 and the top of the atrium 14.

[0033] In the top light 20, an air accumulation space 24 is formed between the light-transmitting plates 22A and 22B that are arranged at intervals in the vertical direction. The light-transmitting plates 22A and 22B are formed using glass.

[0034] Among these, the light-transmitting plate 22A arranged above is formed using a heat-insulating type glass such as Low-E (Low Emissivity) glass or a heat-insulating type glass. Further, a roll screen S that can be wound up and unwound is arranged below the light-transmitting plate 22A.

[0035] Note that it is not necessarily required to use Low-E (Low Emissivity) glass as the light-transmitting plate 22A. Also, Low-E (Low Emissivity) glass may be used for the light-transmitting plate 22B. Furthermore, as the material for forming the light-transmitting plates 22A and 22B, in addition to glass, polycarbonate or the like can be used.

[0036] The top light 20 is provided with an introduction hole 26 for introducing air from the atrium 14 into the air accumulation space 24. The light-transmitting plate 22B has an upward gradient toward the introduction hole 26. Further, a louver L is arranged below the light-transmitting plate 22B with a gap. The louver L is provided for the purpose of adjusting the amount of daylight entering the indoor space, but it can also be omitted as appropriate.

[0037] (Outdoor air treatment air conditioner) The outdoor air treatment air conditioner 30 includes a total heat exchanger 32, a chilled water coil 34, a supply air fan 36, a desiccant rotor 38, a heating coil 40, and an exhaust fan 42.

[0038] In the outside air treatment air conditioner 30, the air supply mechanism 50 and the first exhaust mechanism 60 are coordinated. Specifically, an air supply path 52 that constitutes the air supply mechanism 50 is connected to the outside air treatment air conditioner 30, and an exhaust path 62 that constitutes the first exhaust mechanism 60 is also connected.

[0039] Although details will be described later, the air supply mechanism 50 is a mechanism that supplies conditioned air to the internal space of the building 10 including the floor use area. The first exhaust mechanism 60 is a mechanism that exhausts air from the internal space of the building 10 including the floor use area to the outside.

[0040] The total heat exchanger 32 exchanges heat between the outside air introduced into the outside air treatment air conditioner 30 via the air supply path 52 and the exhaust air inside the building 10 introduced into the outside air treatment air conditioner 30 via the exhaust path 62. For example, in summer, heat is exchanged between the high-temperature outside air and the relatively low-temperature exhaust air to lower the outside air temperature in the air supply path 52.

[0041] When the exhaust temperature after passing through the desiccant rotor 38 described later is higher than the outside air temperature, a bypass 62A is provided in the exhaust path 62 to discharge the exhaust to the outside without passing through the total heat exchanger 32.

[0042] The chilled water coil 34 is a device that can heat and cool the air supplied to the internal space of the building 10 to generate conditioned air. The chilled water coil 34 may be formed separately into a cooling coil and a heating coil.

[0043] The air supply fan 36 is a blower that sends conditioned air to the internal space of the building 10. The conditioned air is blown into the internal space of the building 10 via the desiccant rotor 38.

[0044] The desiccant rotor 38 is a dehumidifying device that adsorbs moisture in the conditioned air blown into the internal space of the building 10 to dehumidify it. The desiccant rotor 38 that has adsorbed moisture rotates and is disposed on the exhaust path 62 side, and is dehumidified and regenerated by the exhaust air that has been heated to warm air.

[0045] The heating coil 40 is a device that heats the exhaust air from within the building 10 that has been introduced into the outside air processing air-conditioning device 30 via the exhaust path 62, and raises the temperature to a temperature required for regenerating the desiccant rotor.

[0046] The exhaust fan 42 is a blower that sends exhaust air to the outside of the building 10. The exhaust air passes through the total heat exchanger 32 or the bypass 62A and is discharged to the outside of the building 10.

[0047] (Air supply mechanism) The air supply mechanism 50 is formed by including an air supply path 52 connected to the outside air processing air conditioner 30, a VAV (Variable Air Volume) 54, an AHU (Air Handling Unit) 56, and a chamber 58.

[0048] The air supply path 52 has a branch path 52A on the downstream side with respect to the upstream side connected to the outside air processing air-conditioning device 30. The number of branch paths 52A can be selected appropriately, but in this embodiment, one is provided for each floor of the building 10.

[0049] The VAV 54 is provided at the outside air intake port of the air supply path 52 and at each branch path 52A. The airflow rate of each VAV 54 is controlled in conjunction with each other by a control device (not shown).

[0050] The AHU 56 is a device that supplies conditioned air from the branch path 52A to the floor utilization area R of each floor. In the branch path 52A, a chamber 58 is disposed upstream of the AHU 56. In addition, the chamber 58 is also supplied with return air RA from the floor utilization area R of each floor via a return air path 80. In other words, the AHU 56 is supplied with mixed air obtained by mixing the supply air and the return air in the chamber 58.

[0051] The AHU 56 is equipped with a pre-filter, a hot and cold water coil, and a fan (not shown), and is capable of adjusting the temperature of the mixed air to any desired temperature.

[0052] In the AHU 56, the air whose temperature has been adjusted is supplied from the air-conditioning path 16 provided under the floor of the building 10 to the floor use area R. An air outlet (not shown) is provided on the floor of the floor use area R. An electric shutter is provided at each air outlet and is controlled in conjunction with the fan of the AHU 56 and a control device (not shown).

[0053] (First exhaust mechanism) The first exhaust mechanism 60 includes an exhaust path 62 and a branch path 64 connected to the outdoor air treatment air conditioner 30. The exhaust path 62 is an exhaust path capable of introducing the exhaust air from the air accumulation space 24 to the desiccant rotor 38.

[0054] By means of the exhaust path 62, the air in the air accumulation space 24 heated by solar radiation can be exhausted. As a result, the air accumulation space 24 functions as a ventilation space for exhausting the indoor air introduced from the introduction hole 26 to the exhaust path 62.

[0055] On the other hand, the branch path 64 is connected to the exhaust path 62 and is an exhaust path capable of introducing the indoor air in the floor use area R to the desiccant rotor 38 via the exhaust path 62. In FIG. 1, the branch path 64 is provided only on the top floor of the building 10, but it may be provided on other floors as well.

[0056] An electromagnetic valve 66A and an electromagnetic valve 66B are provided respectively on the upstream side of the location where the branch path is connected in the exhaust path 62 and in the branch path 64. The electromagnetic valves 66A and 66B are controlled to open and close by a control device (not shown).

[0057] This control device controls the electromagnetic valves 66A and 66B according to the temperature of the air in the air accumulation space 24 and the temperature of the indoor air, and switches the air introduced into the desiccant rotor 38 or the total heat exchanger 32.

[0058] For example, in summer, when the temperature of the air in the air accumulation space 24 is higher than the temperature of the indoor air, the control device opens the solenoid valve 66A and closes the solenoid valve 66B. As a result, the air in the air accumulation space 24 is introduced into the desiccant rotor 38.

[0059] Alternatively, in winter, when the temperature of the air in the air accumulation space 24 is lower than the temperature of the indoor air, the control device closes the solenoid valve 66A and opens the solenoid valve 66B. As a result, the air in the floor utilization area R is introduced into the total heat exchanger 32. In winter, the drive of the desiccant rotor 38 can be stopped.

[0060] (Second exhaust mechanism) The second exhaust mechanism 70 includes a suction port 72, an exhaust path 74, and a solenoid valve 76. The suction port 72 is an opening formed in the floor at the bottom of the soffit 40, and one end of the exhaust path 74 is connected thereto. The exhaust path 74 exhausts cold air from the floor at the bottom of the soffit 40 through the suction port 72. The other end of the exhaust path 74 is connected to an arbitrary chamber 58.

[0061] The solenoid valve 76 is controlled to open and close by a control device (not shown). An exhaust fan that operates in conjunction with the solenoid valve 76 may be provided in the exhaust path 74.

[0062] In winter, for example, when the temperature of the floor near the bottom of the soffit 40 (i.e., the perimeter area) is lower than the temperature of other parts, or lower than a predetermined threshold value, the control device opens the solenoid valve 76 to exhaust cold air.

[0063] The exhausted cold air is heated by the AHU 56 and refluxed into the room. The other end of the exhaust path 74 may be opened to a cold air demand room such as a server room, for example, to introduce cold air into the cold air demand room. Alternatively, the other end of the exhaust path 74 may be opened to the outdoor space to exhaust cold air.

[0064] <Function and effect> In the exhaust heat mechanism according to the embodiment of the present invention, the toplight 20 is provided above the floor utilization area R. Thereby, the floor utilization area R can be illuminated.

[0065] Also, the air heated by solar radiation is accumulated in the air accumulation space 24 and exhausted by the first exhaust mechanism 60. Therefore, it is difficult for the thermal environment in the floor utilization area R to deteriorate. In particular, it is difficult for the thermal environment in the floor utilization area R on the top floor of the building 10 to deteriorate.

[0066] Furthermore, the air accumulation space is formed between the translucent plates 22A and 22B arranged at intervals in the vertical direction. For this reason, the air heated by the solar radiation passing through the upper translucent plate 22A is blocked by the lower translucent plate 22B and hardly reaches the floor utilization area R. Thereby, compared with the toplight without the lower translucent plate 22B, while suppressing the height of the air accumulation space 24 (in other words, while suppressing the height of the building 10), it is difficult for the habitability of the floor utilization area R to deteriorate.

[0067] On the other hand, if there is no translucent plate 22B, the air heated by solar radiation accumulates below the toplight, and since there is nothing to block this air, it easily reaches the floor utilization area R.

[0068] And in the case where there is no translucent plate 22B, in order to make it difficult for the heated air to reach the floor utilization area R, as shown by the two-dot chain line T in FIG. 1, it is necessary to increase the protruding height of the toplight with respect to the building 10 to increase the air volume.

[0069] Also, in the exhaust heat mechanism according to the embodiment of the present invention, the toplight 20 is provided not only above the floor utilization area R but also straddling the top of the through-hole 14 communicating with the floors of each floor. Thereby, each floor can be illuminated through the through-hole 14.

[0070] Also, since the exhaust air from each floor is introduced into the air accumulation space 24 of the toplight 20 through the through-hole 14, the ventilation path can be unified.

[0071] Further, in the exhaust heat mechanism according to the embodiment of the present invention, the through-passage 14 is provided at the outer peripheral portion of the building 10. Therefore, lighting can be provided to each floor through the light-transmitting plate 12 not only at the top but also at the outer peripheral portion of the through-passage 14. In addition, the air at the outer peripheral portion that is likely to warm up can be efficiently collected in the air accumulation space 24 for exhaust heat.

[0072] Further, in the exhaust heat mechanism according to the embodiment of the present invention, the first exhaust mechanism 60 exhausts the air in the air accumulation space 24 to the outside through the desiccant rotor 38. By using the heat in the air accumulation space 24 for the regeneration of the desiccant rotor 38 in this way, it is not necessary to generate regeneration heat by the heating coil 40, or the amount of regeneration heat generated by the heating coil 40 can be reduced, and energy can be saved.

[0073] Further, in the exhaust heat mechanism according to the embodiment of the present invention, since the lower light-transmitting plate 22B has an upward gradient toward the introduction hole 26, warm air flows along the light-transmitting plate 22B toward the introduction hole, and the exhaust efficiency is high.

[0074] Further, in the exhaust heat mechanism according to the embodiment of the present invention, the upper light-transmitting plate 22A in the toplight 20 is heat-shielding type glass or heat-insulating type glass. Thereby, compared with a structure that does not use these glasses or a structure in which the lower light-transmitting plate 22B is made of these glasses, the temperature rise on the indoor side due to solar radiation can be suppressed. Also, by providing heat-insulating type glass, it is possible to suppress the heat on the indoor side from escaping to the outdoor side in winter.

[0075] Further, in the exhaust heat mechanism according to the embodiment of the present invention, warm air can be exhausted from the top of the through-passage 14 provided at the outer peripheral portion of the building 10 through the exhaust path 62, and cold air can be exhausted from the bottom through the exhaust path 74. Thereby, the thermal environment in the building 10 in summer and winter can be adjusted.

[0076] Further, in the exhaust heat mechanism according to the embodiment of the present invention, a branch path 64 is connected to the exhaust path 62, and the air introduced into the total heat exchanger 32 can be switched according to the temperature of the air in the air accumulation space 24 and the temperature of the indoor air. Thereby, when the air temperature in the air accumulation is low in winter, the relatively high-temperature indoor air can be used for heat exchange with the outside air.

[0077] Also, in the exhaust heat mechanism according to the embodiment of the present invention, the cold air discharged into the exhaust path 74 is introduced into the cold air demand chamber, heated and refluxed into the room, or discharged outdoors. When introduced into the cold air demand chamber, the cold air can be effectively utilized. When heated and refluxed into the room, less energy is required than heating the outside air. When discharged outdoors, the exhaust mechanism can be simply configured.

[0078] <Other Embodiments> In the above embodiment, the introduction hole 26 is provided in the top light 20, and the light-transmitting plate 22B slopes upward toward the introduction hole 26, but the embodiment of the present invention is not limited to this.

[0079] For example, as shown in FIG. 2, the introduction hole 26 may not be provided in the top light 20, and the light-transmitting plate 22B may be arranged horizontally. Even if the introduction hole 26 is not provided in the top light 20 and the light-transmitting plate 22B is arranged horizontally, the exhaust from the air accumulation space 24 can be introduced into the desiccant rotor 38.

[0080] Also, in the above embodiment, a branch path 64 is connected to the exhaust path 62, and the air introduced into the desiccant rotor 38 can be switched, but the embodiment of the present invention is not limited to this. For example, such a branch path 64 does not necessarily have to be provided. Even if the branch path 64 is not provided, at least in summer when the air temperature in the air accumulation space 24 becomes high, the exhaust from the air accumulation space 24 can be introduced into the desiccant rotor 38. Thereby, the regeneration energy of the desiccant rotor 38 can be saved.

[0081] In the above-described embodiment, the atrium 14 is provided on the outer peripheral portion of the building 10. However, the embodiment of the present invention is not limited to this. For example, the atrium may be arranged inside the building 10. Even in such a case, by providing at least a part of the toplight 20 above the floor use area, it is possible to obtain the effect that the height of the air accumulation space 24 is suppressed and the habitability of the floor use area is unlikely to deteriorate.

[0082] In the above-described embodiment, the toplight 20 is provided at the top of the atrium 14. However, the embodiment of the present invention is not limited to this. For example, as shown in FIG. 3, the entire toplight 20 may be provided above the floor use area. Even in such a case, it is possible to obtain the effect that the height of the air accumulation space 24 is suppressed and the habitability of the floor use area is unlikely to deteriorate.

[0083] In the above-described embodiment, the first exhaust mechanism 60 exhausts the air in the air accumulation space 24 to the outside through the desiccant rotor 38. However, the embodiment of the present invention is not limited to this. Regardless of the presence or absence of the desiccant rotor 38 in the building 10, any device that exhausts the air in the air accumulation space 24 to the outside may be used.

[0084] In the above-described embodiment, the second exhaust mechanism 70 for exhausting cold air from the floor at the bottom of the atrium 14 is provided. However, the embodiment of the present invention is not limited to this. Regardless of the presence or absence of the atrium 14 in the building 10, the second exhaust mechanism 70 may be omitted. Thus, the present invention can be implemented in various modes.

Explanation of Reference Numerals

[0085] 10 Building 14 Atrium 20 Toplight 22A Translucent plate 22B Translucent plate 24 Air accumulation space 26 Introduction hole 30 Outdoor air treatment air conditioner 38 Desiccant rotor 60 First exhaust mechanism (exhaust mechanism) R floor usage area

Claims

1. A toplight in which at least a part is provided above the floor utilization area, and an air accumulation space is formed between light-transmitting plates arranged at intervals vertically, and An exhaust mechanism capable of exhausting the air in the air accumulation space heated by solar radiation, and An exhaust heat mechanism comprising an exhaust heat mechanism.

2. The toplight is provided above the floor utilization area and straddles the top of the atrium communicating with the floors of each floor, The toplight is provided with an introduction hole for introducing air from the atrium into the air accumulation space, The exhaust heat mechanism according to claim 1.

3. The atrium is provided at the outer peripheral part of the building, The exhaust heat mechanism according to claim 2.

4. Having an outdoor air treatment air conditioner equipped with a desiccant rotor, The exhaust mechanism can exhaust the air to the outside through the desiccant rotor, The exhaust heat mechanism according to any one of claims 1 to 3.

5. The lower light-transmitting plate has an upward gradient toward the introduction hole, The exhaust heat mechanism according to claim 2 or 3.

6. The upper light-transmitting plate is heat-shielding type glass or heat-insulating type glass, The exhaust heat mechanism according to any one of claims 1 to 3.

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